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Java: Upcasting and Dynamic Dispatch

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How do reference type and runtime type affect method execution?

The reference type determines accessible methods; the runtime type determines the executed method. In Java, the reference type…

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Flashcard Study

Java: Upcasting and Dynamic Dispatch

Front

Why is it useful to upcasting in Java?

Upcasting allows treating a subclass object as an instance of its superclass. Upcasting is useful when you want…

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Flashcard Study

Java: Upcasting and Dynamic Dispatch

Front

Why does interfaces in Java help in practice?

They provide a contract for classes. Frame the concept in practical terms so you can explain it during…

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Flashcard Study

Java: Upcasting and Dynamic Dispatch

Front

Why is understanding runtime type crucial in Java?

It determines actual method execution. Frame the concept in practical terms so you can explain it during interview…

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Flashcard Study

Java: Upcasting and Dynamic Dispatch

Front

How can upcasting affect method calls in Java?

It restricts calls to superclass methods. Frame the concept in practical terms so you can explain it during…

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Flashcard Study

Java: Upcasting and Dynamic Dispatch

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How does polymorphism benefit code design?

It enables flexible and reusable code. Frame the concept in practical terms so you can explain it during…

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Flashcard Study

Java: Upcasting and Dynamic Dispatch

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How would you explain a common pitfall with method overriding in an interview?

Forgetting to use the @Override annotation. A common mistake when overriding methods is not using the `@Override` annotation.…

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Flashcard Study

Java: Upcasting and Dynamic Dispatch

Front

Why can upcasting lead to method access limitations?

Upcasting hides subclass-specific methods. When upcasting, the reference type restricts access to only those methods declared in the…

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Flashcard Study

Java: Upcasting and Dynamic Dispatch

Front

What is runtime type in Java?

The actual type of the object in memory. Frame the concept in practical terms so you can explain…

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Flashcard Study

Java: Upcasting and Dynamic Dispatch

Front

How would you explain the reference type in a Java interview?

The declared type of a variable. Frame the concept in practical terms so you can explain it during…

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